Triangles MCQ Questions for Class 9 Math's Chapter 7 with Answers

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All questions answers in the last paragraph

MCQ Questions for Class 9 Mathematics with Answers

Q1. In △ABC, ∠A = 35∘ and ∠B = 65∘, then the longest side of the triangle is:

(A) AC
(B) BC
(C) AB
(D) None of these

Q2. In a right triangle, the longest side is:

(A) Perpendicular
(B) Hypotenuse
(C) Base
(D) None of the above

Q3. In ∆ABC, BC = AB and ∠B = 80°. Then ∠A is equal to:

(A) 80°
(B) 40°
(C) 50°
(D) 100°

Q4. If ABC and DBC are two isosceles triangles on the same base BC. Then:

(A) ∠ABD = ∠ACD
(B) ∠ABD > ∠ACD
(C) ∠ABD < ∠ACD
(D) None of the above

Q5. The angles opposite to equal sides of a triangle are:

(A) Equal
(B) Unequal
(C) supplementary angles
(D) Complementary angles

Q6. In ΔABC, ∠C = ∠A and BC = 4 cm and AC = 5 cm, then find length of AB.

(A) 5 cm
(B) 3 cm
(C) 4 cm
(D) 2.5 cm

Q7. A triangle can have:

(A) Two obtuse angles
(B) Two acute angles
(C) Two right angles
(D) All angles more than 60°

Q8. If AB = QR, BC=RP and CA = QP, then which of the following holds?

(A) △BCA ≅ △PQR
(B) △ABC ≅ △PQR
(C) △CBA ≅ △PQR
(D) △CAB ≅ △PQR

Q9. △ABC = △PQR, then which of the following is true?

(A) CB = QP
(B) CA = RP
(C) AC = RQ
(D) AB = RP

Q10. If two sides of a triangle are equal, the angles opposite to these sides are

(A) supplementary
(B) equal
(C) right angles
(D) not equal

Q11. In a right triangle, the longest side is:

(A) Perpendicular
(B) Hypotenuse
(C) Base
(D) None of the above

Q12. If the altitudes from vertices of a triangle to the opposite sides are equal, then the triangles is

(A) Scalene
(B) Isosceles
(C) Equilateral
(D) Right-angled

Q13. ABC is an isosceles triangle in which altitudes BE and CF are drawn to equal sides AC and AB respectively. Then:

(A) BE > CF
(B) BE < CF
(C) BE = CF
(D) None of the above

Q14. If ABC is an equilateral triangle, then each angle equals to:

(A) 90°
(B) 180°
(C) 120°
(D) 60°

Q15. The perimeter of a triangle is _ the sum of its medians.

(A) less than
(B) greater than twice
(C) equal to
(D) greater than

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All questions answers

QUESTIONS NO :	ANSWERS :
1	C
2	B
3	C
4	A
5	A
6	C
7	B
8	D
9	B
10	B
11	B
12	B
13	C
14	D
15	D

Triangles MCQ Questions for Class 9 Math’s Chapter 7 with Answers